var saveAs = saveAs || (function (view) {
    // IE <10 is explicitly unsupported
    if (typeof view === "undefined" || typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) {
        return;
    }
    const
        doc = view.document;
    // only get URL when necessary in case Blob.js hasn't overridden it yet
    const get_URL = function () {
        return view.URL || view.webkitURL || view;
    };
    const save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a");
    const can_use_save_link = "download" in save_link;
    const click = function (node) {
        const event = new MouseEvent("click");
        node.dispatchEvent(event);
    };
    const is_safari = /constructor/i.test(view.HTMLElement);
    const is_chrome_ios = /CriOS\/[\d]+/.test(navigator.userAgent);
    const throw_outside = function (ex) {
        (view.setImmediate || view.setTimeout)(() => {
            throw ex;
        }, 0);
    };
    const force_saveable_type = "application/octet-stream";
    const arbitrary_revoke_timeout = 1000 * 40; // in ms
    const revoke = function (file) {
        const revoker = function () {
            if (typeof file === "string") { // file is an object URL
                get_URL().revokeObjectURL(file);
            } else { // file is a File
                file.remove();
            }
        };
        setTimeout(revoker, arbitrary_revoke_timeout);
    };
    const dispatch = function (filesaver, event_types, event) {
        event_types = [].concat(event_types);
        let i = event_types.length;
        while (i--) {
            const listener = filesaver[`on${event_types[i]}`];
            if (typeof listener === "function") {
                try {
                    listener.call(filesaver, event || filesaver);
                } catch (ex) {
                    throw_outside(ex);
                }
            }
        }
    };
    const auto_bom = function (blob) {
        if (/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
            return new Blob([String.fromCharCode(0xFEFF), blob], { type: blob.type });
        }
        return blob;
    };
    const FileSaver = function (blob, name, no_auto_bom) {
        if (!no_auto_bom) {
            blob = auto_bom(blob);
        }
        // First try a.download, then web filesystem, then object URLs
        const
            filesaver = this;
        const type = blob.type;
        const force = type === force_saveable_type;
        let object_url;
        const dispatch_all = function () {
            dispatch(filesaver, "writestart progress write writeend".split(" "));
        };
        // on any filesys errors revert to saving with object URLs
        const fs_error = function () {
            if ((is_chrome_ios || (force && is_safari)) && view.FileReader) {
                // Safari doesn't allow downloading of blob urls
                const reader = new FileReader();
                reader.onloadend = function () {
                    let url = is_chrome_ios ? reader.result : reader.result.replace(/^data:[^;]*;/, 'data:attachment/file;');
                    const popup = view.open(url, '_blank');
                    if (!popup) view.location.href = url;
                    url = undefined; // release reference before dispatching
                    filesaver.readyState = filesaver.DONE;
                    dispatch_all();
                };
                reader.readAsDataURL(blob);
                filesaver.readyState = filesaver.INIT;
                return;
            }
            // don't create more object URLs than needed
            if (!object_url) {
                object_url = get_URL().createObjectURL(blob);
            }
            if (force) {
                view.location.href = object_url;
            } else {
                const opened = view.open(object_url, "_blank");
                if (!opened) {
                    view.location.href = object_url;
                }
            }
            filesaver.readyState = filesaver.DONE;
            dispatch_all();
            revoke(object_url);
        };
        filesaver.readyState = filesaver.INIT;

        if (can_use_save_link) {
            object_url = get_URL().createObjectURL(blob);
            setTimeout(() => {
                save_link.href = object_url;
                save_link.download = name;
                click(save_link);
                dispatch_all();
                revoke(object_url);
                filesaver.readyState = filesaver.DONE;
            });
            return;
        }

        fs_error();
    };
    const FS_proto = FileSaver.prototype;
    const saveAs = function (blob, name, no_auto_bom) {
            return new FileSaver(blob, name || blob.name || "download", no_auto_bom);
        }
    ;
    // IE 10+ (native saveAs)
    if (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob) {
        return function (blob, name, no_auto_bom) {
            name = name || blob.name || "download";

            if (!no_auto_bom) {
                blob = auto_bom(blob);
            }
            return navigator.msSaveOrOpenBlob(blob, name);
        };
    }

    FS_proto.abort = function () {
    };
    FS_proto.readyState = FS_proto.INIT = 0;
    FS_proto.WRITING = 1;
    FS_proto.DONE = 2;

    FS_proto.error =
        FS_proto.onwritestart =
            FS_proto.onprogress =
                FS_proto.onwrite =
                    FS_proto.onabort =
                        FS_proto.onerror =
                            FS_proto.onwriteend =
                                null;

    return saveAs;
}(
    typeof self !== "undefined" && self
    || typeof window !== "undefined" && window
    || this.content,
));

if (typeof module !== "undefined" && module.exports) {
    module.exports.saveAs = saveAs;
} else if ((typeof define !== "undefined" && define !== null) && (define.amd !== null)) {
    define([], () => saveAs);
}
